GameKnot: Comments - Chess Tactics #17787

CHESS TACTICS #17787

Problem's rating:	1865
Avg. time to solve:	02:11
Total attempts:	420
Solved percentage:	46.0%

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kfrieden
25-Dec-11, 20:27

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1. Qh7+ Rg7
2. Bxg7 Qxd4+
3. Kf1 fxg2+
4. Ke1 g1=Q+
5. Bf1 Qdf2+
6. Kd1 Qgxf1#

zarathustra7
01-Jan-12, 05:00

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I agree

exactly.
With the exception of the 5th move: 5. ...Qgf2 is mate already.

noob81
25-Jan-12, 19:48

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I've also played Rg7, but Gameknot is right nevertheless. That's what 2800+ engine says:
A) -15.75 (depth 22) 1...Kb8 2.Qxg8+ Qxg8 3.Bf1 fxg2 4.Ba6 f3 5.Bh4 Qd5 6.Bf2 Rxa6 7.Re1 Bf4 etc.
3.95 (depth 22) 1...Rg7 2.Rxc6+ Kxc6 3.Rc1+ Kb7 4.Bxg7 Qxd4+ 5.Kh1 fxe2 6.Bxh6+ Ka6 7.Qc2 Qxe5 etc.
C) 20.60 (depth 22) 1...Bg7 2.Bxf3 Qxf3 3.gxf3 Kb7 4.Rxc6 Kxc6 5.Bxg7 Kb7 6.Kf2 Ka6 7.Bh6 Rab8 etc.
D) 36.88 (depth 22) 1...Kc8 2.Rxc6+ Qxc6 3.Qxg8+ Kb7 4.Qf7+ Qc7 5.Bxf3+ Kb8 6.Qe8+ Qc8 7.Qxc8+ Kxc8 etc.
So anything except Kb8 will get you in trouble (variant or very serious trouble (C, D and others).

noob81
25-Jan-12, 19:50

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That bloody smile stands for B+bracket. You always have to preview before posting, my fault

zarathustra7
06-Mar-12, 14:53

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oh...thank you very much...I completely missed 2.Rxc6+!

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CHESS TACTICS #17787